Best Of
Re: Seeking your thoughts regarding a boiler/system upgrade for a small 1980s ranch.
Correct, only a small fraction of heating season should you need full BTU output, or highest temperature.
So with a mod con you can limit BTU output, run as low as temperature as possible and enable outdoor reset. ODR increases efficiency.
If the system is zoned, the modulation is a big feature.
hot_rod
Re: Pricing on refurbished cast iron radiators
I always keep an "eye out" for them. They are wonderful heating devices from a bygone era that have stood the test of time and peform superbly— even into the future.
psb75
Re: Need help with new install of radiant with Buderus cast iron boiler
If you're looking to keep the cost down, M Copper is perfect. Using L on heating is overkill in most cases. Mad Dog
Re: Cutler-Hammer 9201 .80amp What to replace it with.....
Given all that rust and that the heater coils are discontinued I think it is time for a new motor starter.
mattmia2
Re: How much does size matter?
When I read the post title, I had visions of what your comment would be😊
Re: Different valves?
OK… I'll ask the dumb question. What's the matter with the old one, other than it needs a good wire brushing? There isn't much that can go wrong with those things that can't be fixed in an hour or so…
Re: Cutler-Hammer 9201 .80amp What to replace it with.....
if a motor doesn’t have a thermal overload a starter switch is required.
Does that motor have a thermal overload?
pecmsg
Re: System Sizing
Pipe the boilers in PARALLEL with primary/secondary manifolding. Piping them in series will give you all kinds of grief.
Re: System Sizing
primary secondary piping is how that is piped and how I would pipe two boilers
Do you could run either/ or, or even run both together for full output of 300k
Primary loop would be 1-1/2”
Boiler piping 1-1/4, manifolds 1-1/4”
hot_rod
Re: buying a hydronics business
For the large amount I would want to see his client list, and financials showing what he has paid himself.
Do you get the company name and phone number?
How many hours a week does he work for that salary?
Tools, truck, inventory?
40 hours a week, 50 weeks a year= 2000 hours
So you need to add at least $50.00 and hour to your labor rates just to pay him
If all three if you want 100k a year, $150 per hour per billiable hour just for salary.
Its doubtful you will have that many billable m, productive hours a year, so maybe pushing 200 per hour
Here is a really good deal 😁 to maybe help with some number crunching
hot_rod